ul,
ol {
  list-style: none;
}

.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

* {
  margin: 0;
  padding: 0;
}

body {
  overflow: hidden;
}

#canvas {
  padding: 0;
  margin: 0;
  position: fixed;
  top: 0;
  left: 0;
}

.actions {
  position: fixed;
  top: 0;
  left: 0;
  padding: 10px 10px 10px 5px;
}

.actions svg {
  width: 2em;
  height: 2em;
  transition: all 0.3s;
  margin: 0 10px;
}

.actions svg.active {
  fill: red;
  transform: scale(1.2);
}

.colors {
  position: fixed;
  top: 80px;
  left: 18px;
}

.colors > li {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.25), 0 0 3px rgba(0, 0, 0, 0.25),
    0 0 3px rgba(0, 0, 0, 0.25), 0 0 3px rgba(0, 0, 0, 0.25);
  margin: 15px 0;
}

.colors > li.black{
  background-color: black;
}

.colors > li.red {
  background-color: red;
}

.colors > li.blue {
  background-color: blue;
}

.colors > li.green {
  background-color: green;
}

.colors > li.active {
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.25), 0 0 6px rgba(0, 0, 0, 0.25),
    0 0 6px rgba(0, 0, 0, 0.25), 0 0 6px rgba(0, 0, 0, 0.25);
  transform: scale(1.2);
  transition: all 0.3s;
}

.sizes {
  position: fixed;
  top: 0px;
  right: 10px;
}

.sizes > li {
  margin: 20px 0;
}

.sizes > .thin{
  height: 0;
  width: 30px;
  border-top: 3px solid black;
}

.sizes > .strong{
  height: 0;
  width: 30px;
  border-top: 6px solid black;
}